20013056046437 has 2 divisors, whose sum is σ = 20013056046438. Its totient is φ = 20013056046436.

The previous prime is 20013056046421. The next prime is 20013056046481. The reversal of 20013056046437 is 73464065031002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18587816426881 + 1425239619556 = 4311359^2 + 1193834^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013056046437 - 2⁴ = 20013056046421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013056046394 and 20013056046403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013056046407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006528023218 + 10006528023219.

It is an arithmetic number, because the mean of its divisors is an integer number (10006528023219).

Almost surely, 2^{20013056046437} is an apocalyptic number.

It is an amenable number.

20013056046437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013056046437 is an equidigital number, since it uses as much as digits as its factorization.

20013056046437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 20013056046437 in words is "twenty trillion, thirteen billion, fifty-six million, forty-six thousand, four hundred thirty-seven".